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Q56.4

Billable

Indeterminate sex, unspecified

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A birth condition where the biological sex cannot be determined or is unclear at the time of diagnosis.

Coding Tips

  • This is the most unspecified code for sex development disorders; use only when no other Q56 code applies
  • Document any genetic testing results or imaging findings that may help clarify the diagnosis for future encounters

Code Hierarchy

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